Canada Police Investigate 'Terrorism' Attack

An attack on a police officer outside a football game and a high-speed chase that injured four people in the western city of Edmonton are being investigated as acts of 'terrorism', Canadian police said on Sunday.

The chaos began outside a Canadian Football League game on Saturday night when police say a white Chevrolet Malibu rammed a traffic-control barricade and sent an officer flying five metres into the air.